Counterbalancing attachment for pumps



GOUNTERBALANCING ATTACHMENT FOR ruivirs Filed Aug. 5, 1947 InventorTomas B. Sfnbk/and n I I Patented Nov. 2, 1948 COUNTERBALANCINGATTACHMENT FOR PUMPS I Tomas B. Strickland, Animas, N. Mex. ApplicationAugust 5, 1947, Serial No. 766,363

(Cl. iii- 590) 8 Claims.

This invention relates to new and useful improvements incounterbalancing attachments for pumps and the primary object of thepresent invention is to provide a device adjustably mounted on a pumprod to exert a perpendicular pull on the pump rod and to prevent lateralstrain and consequent binding and friction of the pump rod.

Another important object of the present invention is to provide a deviceof the character disclosed including a container that selectivelyreceives a weighted material such as sand or the like for increasing ordecreasing the perpendicular pull on the pump rod.

A further object of the present invention is to provide a counterbalancing attachment for pumps including a weighted container, aflexible member connecting the container to a pump rod and novel andimproved means for guiding the sliding movement of said cable.

A still further aim of the present invention is to provide a counterbalancing attachment for pumps that is simple and practical inconstruction, eflicient and reliable in use, relatively inexpensive tomanufacture, and otherwise well adapted for the purposes for which thesame is intended.

Other objects and advantages reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawing forming part hereof, wherein likenumerals refer to like parts throughout, and in which:

Figure 1 is a fragmentary perspective view of a well pump showing thepresent invention operatively connected thereto;

Figure 2 is a vertical sectional view of the weight receiving container,taken substantially on the plane of section line 2-2 of Figure 1; and,

Figure 3 is a transverse vertical sectional view showing the manner inwhich the bearing for the guide member is applied to the shaft carriedby the same.

Referring now to the drawing in detail, wherein for the purpose ofillustration, there is disclosed a preferred embodiment of the presentinvention, the numeral l represents a pair of substantially triangularframes or side members, preferably circular in cross section, inclinedtoward each other at their upper end and retained in the inclinedpositions by cross braces l2.

Removably secured to the upper substantially horizontal portion Id ofthe side members, is a transverse shaft l6, having an annular shoulder 2l8 anda threaded portion adjacent said shoulder receivably engaging anut 22.

Journaled for rotation on the shaft between shoulder l8 and nut 20, is abearing member 24 to which the terminal portions of a plurality ofradial spokes 26 are rigidly secured. Fixedly secured to the outer endsof spokes 26 is an arcuate preferably semi-circular guide member 28 thatslidably receives a cable 30.

One end of cable 30 is adjustably mounted by use of cable clamps 32, toa pump rod 34, and the opposite end of cable 30 is adjustably mounted bycable clamp 35 on a nod 36, fixedly secured and extending axiallythrough a cylindrical container 28, tapered at each end 30. The uppertapered end of the container is provided with a a hinge door or closure42 through which sand or other suitable weighted material 44 may passinto the container.

Projecting downwardly from the lower periphery of bearing 24, is a pairof downwardly inclined suspension arms 46 supporting a counter weight48.

In practical use of the device, sand or the like 44 is placed into thecontainer 38 until the weight of the container equals the weight of thepump rod 34, the piston of the pump rod (not shown) and the weight ofthe water normally lifted by the piston. By such an arrangement, thetime necessary to drive the pump rod will be reduced.

Obviously, during the operation of the device thus described, the Weight48 will tend to normally retain the guide 28 disposed in a position asbest shown in Figure 1 of the drawing.

In view of the foregoing description taken in conjunction with theaccompanying drawing it is believed that a clear understanding of theconstruction, operation and advantages of the device will be quiteapparent to those skilled in this art. A more detailed description isaccordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shownand described a preferred embodiment of the invention the same issusceptible to certain changes fully comprehended by the spirit of theinvention as herein described and the scope of the appended claims.

Having described the invention, what is claimed as new 1s:

1. A counter balancing attachment for pumps comprising a frame, a shaftremovably secured to said frame, a member journaled for rotation on saidshaft, a container, means slidably mounted on said member connected tosaid container and 3 a piiiiip rod, and counter balance weight meanssuspended from said member.

2. A counter balancing attachment for pumps comprising a frame, a shaftremovably secured to said frame, a member journaled for rotation on saidframe, an arcuate guide carried by said member, a cable slidably mountedin said guide, one end of saidcable adjustably mounted on a pump rod, acontainer removably secured to the opposite end of said cable, saidcontainer receiving a weighted material, and a counter balance weightsuspended from said member.

3. The combination of claim 2 wherein said container includes acylindrical member tapered at each end and having a hinged closure atone end.

4. A counter balancing attachment for pumps comprising a frame, a shaftremovably secured to said frame including an annular shoulder and athreaded portion adjacent said shoulder receivably engaging a nut, abearing journaled for rotation on said shaft interposed between saidshoulder and said nut, spokes radiating from said bearing, a guidefixedly secured to the outer ends of 4 said spokes, a cable slidablymounted on said guide, one end of said cable adjustably mounted on apump rod, a container selectively receiving a weighted material carriedby the opposite end of said cable and a counter balance suspended fromsaid bearing. 5. The combination of claim 4 wherein said counter balanceincludes a weight and means rig idly suspending said weight from saidbearing. 6. The combination of claim 4 wherein said frame includes apair of substantially triangular side members converging at their upperends,

- means for retaining said side members at an iii- 20 at each end and adoor hinged to one of said ends.

TOMAS B. STRICKLAND.

No references cited.

